The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2010
Filed:
Aug. 28, 2006
Laurent Gasca, Villebon-sur-Yvette, FR;
Stéphanie Blanchandin, Paris, FR;
Alain Pastouret, Les Ulis, FR;
Christian Simonneau, Villejuif, FR;
Laurent Gasca, Villebon-sur-Yvette, FR;
Stéphanie Blanchandin, Paris, FR;
Alain Pastouret, Les Ulis, FR;
Christian Simonneau, Villejuif, FR;
Alcatel Lucent, Paris, FR;
Abstract
The invention concerns a method for making an optical fiber () including the following steps: producing a preform () containing nanoparticles provided with an active element including at least one recess () proximate at least part of the nanoparticles; fiber drawing of the preform () by introducing a non-oxidizing gas in the recess (), thereby limiting the risks of oxidizing the nanoparticles of the preform (). The preform () designed to the manufacture of an optical fiber () by the inventive method comprises nanoparticles provided with an active element in a doped zone () and at least one recess () proximate the doped zone ().